1. Be unsure or weak
   "Their enthusiasm is faltering";
   - waver
    
2. Move hesitatingly, as if about to give way
   "He faltered at the edge of the cliff";
   - waver
    
3. Walk unsteadily, tripping repeatedly
   "The drunk man faltered about";
   - stumble, bumble
    
4. Speak haltingly
   "The speaker faltered when he saw his opponent enter the room";
   - bumble, stutter, stammer
    
5. Lose strength or momentum
   "The economy faltered in the last quarter"

1. The act of pausing uncertainly
   "there was a falter in his speech";
   - hesitation, waver, faltering

Derived forms: faltered, faltering, falters

Type of: balk, baulk [Brit], hesitate, mouth, move, pause, speak, talk, utter, verbalise [Brit], verbalize, waffle [N. Amer, informal], walk, waver

Encyclopedia: Falter, Martin